#!/bin/bash
#THIS DRIVER WRITTEN BY MATTHEW VONA ARB FOR THE RMYOUNG81000 ULTRASONIC ANEMOMETER
#FOR QUESTIONS WRITE mailto:mvona@arb.ca.gov
# THIS IS THE FUNCTION CALLED IN THE EVENT THAT CTRL+C IS PRESSED
DIR="$( cd -P "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

#COMMAND TO RUN WHEN WANTING TO REMOVE ALL SUB-SECOND FILES
clean_temp_data()
{
	for i in `seq -w 00 24`
		do
			rm -R ${DIR}/${i} 1> /dev/null 2>/dev/null
		done
}
#COMMAND TO RUN PRIOR TO DATA COLLECTION TO ENSURE THAT NO OLD DATA EXISTS
pre_run()
{
	clean_temp_data
	#set_config
	:
}
pre_run


#INITIALIZE THE RMYOUNG 81000 RECORDER
record()
{
bash ${DIR}/rmcord "${dvc_prt}" "${bd_rt}"&
rm_id="$!"
if [ -z "$rm_id" ]
then 
	echo "Failed to start the RMYOUNG recorder."
fi
#if !(bash ${DIR}/rmcord "${dvc_prt}" "${bd_rt}"&); then
#	{
#		echo "Failed to start the RMYOUNG recorder."
#	}
#else
#	{
#		#DETERMINE THE IS OF THE rmcord PROCESS
#		rm_id=`ps -fe | grep rmcord | grep -v grep | awk '{ print $2 }'`	
#		echo "RMCORD IS $rm_id"
#	}
#fi
}
#GET RID OF EXTRA DATA FILES
cleanup()
{
	echo "Caught Signal ... cleaning up."
		if !(rm -f Data/.locked > /dev/null); then
       			{
               		 exit 1
			
        		} 
		fi
	kill ${rm_id}	
	clean_temp_data 

	echo "Done cleanup ... quitting."
	exit 1
}
#COMMAND TO RUN TO ENSURE THAT THE SETTINGS ARE CORRECT FOR THIS DRIVER
set_config()
{
		if !(stty -F $dvc_prt raw ispeed $bd_rt ospeed $bd_rt cs8 -ignpar -cstopb -echo); then
			{
				echo "Failed to initialize the serial port using the settings of...
					Serial Port: $dvc_prt
					Baud Rate: $bd_rt		
					Exiting..."
				exit 1;

			}
		fi
		sjinn -d $dvc_prt -s '\h1B\p1B\p1B\hS\pO\pG\pS\p1\p56789AB\r\pX\pX\pX' -w1 -b $bd_rt -r1000
		sjinn -d $dvc_prt -s '\h1B\p1B\p1B\hS\pE\p2\pX\pX\pX' -w1 -b $bd_rt -r1000
}




#COMMAND TO 
#BEGIN WRITE
#THIS FUNCTION HANDELS READ RIGHT HANDSHAKES BETWEEN VARIOUS DRIVERS
#IN GENERAL, THE DATA IS PLACED IN THE VARIABLE $TIMESTAMP PRIOR TO CALL
#NEXT, IT OPENS THE DATA DIRECTORY AND LOOKS FOR THE .locked FILE
#IF IT EXISTS, IT HANGS OUT UNTIL IT DOESN'T EXIST. AT THAT POINT
#IT CREATES A .locked FILE, AND APPENDS TO THE DATA RECORD.
#FINALLY IT REMOVES THE .locked FILE IT HAS CREATED.
#THIS FUNCTION ALSO PARSES THE .DISABLED FILE IN THE DRIVER FOLDER
#AND TAKES A CHANNEL OFF LINE BY PREPENDING --DISABLED-- TO EACH LINE OF CONTENT IN THE DATA DIRECTORY
#written by MJV
write()
{
#CONFIRM THAT THERE IS NO HIDDEN FILE CALLED '.locked'
	while [ -e "Data/.locked" ];
		do
			sleep .2;
		done	
	echo "LOCKED" > "Data/.locked";
	#PARSE THE .disabled File
	channel_status=`cat "$DIR/.disabled${instance}"`
	#IF THE FILE DOSEN'T EXIT OR IS NOT ACCESIBLE
	#MAKES SURE A VALUE OF 0 IS USED
	if [ `expr $channel_status + 0` -eq 1 ]; then
		if !(echo "$data" | sed 's/^/'$timestamp'/g'| sed 's/$/'\-\-DISABLED\-\-'/g' >> "Data/$datafile" ); then
			{
			echo "GENERAL FAILURE WRITING TO RECORD: $#";
			cleanup;
			}
		fi
	else
		if !(echo "$data" | sed 's/^/'$timestamp'/g' >> -a "Data/$datafile"); then
			{
			echo "GENERAL FAILURE WRITING TO RECORD: $#";
			cleanup;
			}
		fi
	
	fi
	if !(rm -f "Data/.locked" > /dev/null); then
		{
			echo "GENERAL FAILURE REMOVING LOCK: $#";
			exit 1;	
		}
	fi
	if !(timestamp="" && data=""); then
		{
		echo "GENERAL FAILURE CLEARING WRITE BUFFER: $#";
		cleanup;
		}
	fi	
}
	
#THIS IS THE ACTUAL COMMUNICATION WITH THE INSTRUMENT
#THE TIMER CONTROL. AT THE BEGINING IT TESTS FOR THE 
#EXISTENCE IF TOGGLE VARRIABLES WHICH ARE UTILIZED BOTH BY
#THE COMM ROUTINE runit() AND THE DIAGNOSTICS DATA ROUTINE
#diag()

#THIS IS THE FUNCTION RUN IN THE EVENT THAT THE REQUIRED PARAMETERS
#ARE NOT ENTERED.
usage()
{
clear
cat << EOF
usage: $0 options
OPTIONS:

-r	rprt_nm [rn]
-d	dvc_prt [eg, /dev/ttyS0, /dev/ttyUSB1] 
-b	bd_rt [2400,4800,9600,38400etc.]
-s	SAROAD number of the station

Last updated 1/26/2011
EOF
}
#HELP FUNCTION GIVES BACKGROUND ON THIS DRIVER
help_me ()
{
clear
cat .help
exit 0
}
def_opts ()
{
clear
cat .options
}

##CLEAR ALL VARIABLES               
rprt_nm= ; dvc_prt= ; bd_rt= ; cmnd1= ; wt_rsp1= ; bd_rt= ; rsp_lngth= ; izs_val= ;
dvc_prt= ; frqncy= ; dtr= ; ctr= ; p8n1= ; izs= ; saroad= ; p8n1= ; id_nmbr= ; 
upp_flow=880 ; low_flow=720 ; instance=1
##INITIALIZE THE BUFFER
## return='NOT WRITTEN TO'
##loop through all variables and parameters
##Note that the position of the colon indicates the presence
##of a parameter to collect. The h parameter simply
##returns the help message.

while getopts “hr:s:d:b:I:” OPTION
do
case $OPTION in
s)
saroad=$OPTARG
;;
r)
rprt_nm=$OPTARG
;;
d)
dvc_prt=$OPTARG
;;
b)
bd_rt=$OPTARG
;;
h)
usage
exit 1
;;
I)
instance=$OPTARG
;;
*)
usage
exit 1
;;
esac
done
#CHECK FOR THE CRITICAL PARAMETERS, IF THEY ARE NOT PRESENT THEN
#RUN THE USAGE FUNCTION WHICH RETURNS THE INSTRUCTIONS FOR PROPER USAGE
#MUST HAVE r n d b s
if [ -z "$rprt_nm" ] || [ -z "$dvc_prt" ] || [ -z "$bd_rt" ] || [ -z "$saroad" ]
	then
		{
		usage
		exit
		}
fi
	#INITIALIZED THE RAN VARIABLE. THIS IS USED TO TOGGLE THE TIMER GATE
ran=0
	#TRAP CTRL+C
trap cleanup 1 2 3 6 15
#start the 81000
record
#SETUP THE OPERATING LOOP
while :
do
second=`date "+%S"`
if [ "$second" -eq "01" ] && [ "$ran" -eq "0" ]; then
	{
	
	

	analysis()
		{	
			#VARIABLES TO INITIALIZE DATA ANALYSIS
			previous_minute=`date -d "last minute" "+%M"`
			previous_hour=`date -d "last minute" "+%H"`
			this_minute_path="${DIR}/${previous_hour}/${previous_minute}.dat"	
			#VARIABLES TO INITIALIZE FILE MAINTENANCE
			future_minute=`date -d "next minute" "+%M"`		
			future_hour=`date -d "next minute" "+%H"`		
			old_minute=`date -d "last hour" "+%H"`
			old_hour=`date -d "last hour" "+%H"`
			if ! [ -e "$this_minute_path" ]; then
				{
					echo "Analysis not performed, no data ready."
				}
			#PER REGGIE SMITH, WON'T REPORT FOR LESS THAN 75% OF THE DATA POINTS (360)
			elif [ `wc -l $this_minute_path | awk '{ print $1 }'` -lt 360 ]; then
				{
					echo "Partial minute, skipping."
					stamp=`date -d "last minute"`
					#REPORT SKIPPED MINUTES TO THE CARBLOGGER EMAIL ALERT SYSTEM
					echo "${rprt_nm}::${stamp}::The $rprt_nm data was not aggregated for this minute because of too few valid data points" >> "Data/errors$previous_hour"
				}
			elif [ `wc -l $this_minute_path | awk '{ print $1 }'` -gt 800 ]; then
				{
					echo "Too many data points for this minute, skipping."
					stamp=`date -d "last minute"`
					#REPORT SKIPPED MINUTES TO THE CARBLOGGER EMAIL ALERT SYSTEM
					echo "${rprt_nm}::${stamp}::The $rprt_nm data was not aggregated for this minute because of too many valid data points" >> "Data/errors$previous_hour"
				}	
			else
				{
					# USES CUSTOM SERIAL OUTPUT 56789AB
					# WIND SPEED KNOTS
					# OUTPUT RATE 8 Hz
					# OMIT ERROR DATA
					# WAKE CORRECTION/INCLUDE INVALID
					# BEG:::HOUR MINUTE SECOND NANOSECOND U V W 2D-SPEED 3D-SPEED AZIMUTH ELEVATION SOS Ts
					ccount='1'
				for i in HOUR MINUTE SECOND NANOSECOND U V W 2D-SPEED 3D-SPEED AZIMUTH ELEVATION SOS Ts; 
					do
						ccount=`echo "$ccount+1" | bc`
										
							#CLEAN UP FILES AHEAD OF THE DATA WRITE (IN CASE SOME WERE INADVERTANTLY LEFT BEHIND)
							rm "${DIR}/${future_hour}/${future_minute}.dat" 1> /dev/null 2> /dev/null
							#CLEAN UP FILES OLDER THAN ONE HOUR
							#rm "${DIR}/${old_hour}/${old_minute}.dat" 1> /dev/null 2> /dev/null
							#Date stamp
							today=`date -d "last minute" "+%Y-%d-%m"`
							timestamp=$rprt_nm::`date -d "last minute" "+%m-%d-%Y_${previous_hour}:${previous_minute}"`:::
							#THIS IS THE NAME OF THE CARBLOGGER DATA FILE RIGHT NOW
							datafile="$saroad-$today"
							#TALK TO THE INSTRUMENT, PRE-APPEND THE TIMESTAMP AND REPORTING NAME TO EACH
							resultset=`gawk -f sys_resources/stats.nawk $ccount $this_minute_path`
							#ONLY USE AVERAGE. IF YOU WANT -- UNCOMMENT						
							token=`echo "${resultset}" | awk '{ print $2 }'`
								if [ ${i} = "Ts" ]; then
									{
										token=`echo "scale=3; (((${token}-32)*5)/9)" | bc -l` 	
									}
								fi					
						
								if [ ${i} = "AZIMUTH" ]; then
									{
									cat $this_minute_path | awk '{ print $6 " " $7 " " $8}' > ${DIR}/.tmpprc
									#gawk -f sys_resources/azimuth.nawk .tmpprc | tr -d ","
									token=`gawk -f sys_resources/azimuth.nawk ${DIR}/.tmpprc | tr -d ","`
									}
								fi						
						
						
							echo "${timestamp} Avg_$i=${token}" >> Data/${datafile} 
							#echo "${timestamp} Sig_$i=`echo "${resultset}" | awk '{ print $3 }'`"
							#echo "${timestamp} Min_$i=`echo "${resultset}" | awk '{ print $4 }'`"
							#echo "${timestamp} Max_$i=`echo "${resultset}" | awk '{ print $5 }'`"  
							#wait $!
							#echo "Performed analysis"
						
						#}
						#fi
					done			

					
				}
			fi

	}

	
	#RUN THE ANALYSIS FUNCTION
		analysis
	#TOGGLE THE RAN VARIABLE SO THAT THE PROCESS WILL NOT REPEAT
	#UNTIL THE BEGINNING OF THE NEXT MINUTE.
		ran=1
	#WAIT FOR COMPLETION OF THE RUNIT FUNCTION AND THE VARIABLE
	#SET
		sleep 1
	}
	#AND WAIT ONE SECOND BEFORE CHECKING AGAIN
else 
	{
	#WAIT ONE SECOND
		sleep .5
	#SET RAN TO 0
		ran=0
	}
fi
done;
exit;


